The Video Assistant Referee was set up for the first time in an English competitive game at the AMEX Stadium on Monday for the FA Cup clash between Brighton and Crystal Palace .
Arsenal are minded to let star attacker Sanchez leave this month rather than losing the Chilean for nothing in the summer, but want at least £35million from the Premier League leaders.
Ryan Kent's stint in the Bundesliga was cut short after a lack of opportunities during the first half of the season. The 21-year-old impressed on loan at Barnsley last campaign.
Brighton host Crystal Palace in the final tie of the FA Cup third round on Monday night. Follow Sportsmail's TOM FARMERY for all the build-up and live coverage of the game.